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#3671df

a balanced, vivid blue · cool · closest name: royalblue

RGB
54, 113, 223
HSL
219°, 73%, 54%
CMYK
76, 49, 0, 13
Luminance
0.1792

Every format

HEX#3671df
RGBrgb(54, 113, 223)
HSLhsl(219, 73%, 54%)
CMYKcmyk(76%, 49%, 0%, 13%)
LABlab(49.4 19.1 -61.6)
LCHlch(49.4 64.5 287.2)
OKLCHoklch(0.570 0.179 261.5)

Copy-ready code

/* CSS */
color: #3671df;
background-color: #3671df;
/* Tailwind (arbitrary) */
class="text-[#3671df] bg-[#3671df]"
/* SCSS */
$brand: #3671df;
/* SwiftUI */
Color(red: 0.212, green: 0.443, blue: 0.875)
/* Android */
Color.parseColor("#3671df")

Accessibility — WCAG contrast

Aa
#3671df on white: 4.58:1
AA ✓ pass · AA-large · AAA
Aa
#3671df on black: 4.58:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red21.2%
Green44.3%
Blue87.5%

CMYK percentages

Cyan75.8%
Magenta49.3%
Yellow0.0%
Key (black)12.5%

Color previews

#3671df text on a black background

contrast 4.58:1

Card sample

#3671df text on a white background

contrast 4.58:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #3671df;
Background color
Panel with #3671df background
background-color: #3671df;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #3671df;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(54, 113, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(54, 113, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3671df;
background: linear-gradient(135deg, #3671df, #6C36DF);

Monochromatic scale

Palettes built from #3671df

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #3671df in the Color Lab